James b



(No Model.)

.J. B. CRANE.

OIL FILTER. No. 478.251. Patented Jul 5, 1892.

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UNITED STATES PATENT OFFICE.

JAMES B. CRANE, or NEWNAN,VGEORGIA, ASSIGNOR or ONE-HALF 'ro J. L. BARRETT, or SAME PLACE.

OlL FlLTER.

SPECIFICATION forming part of Letters Patent No. 478,251, datecl J'uly 5. 1892.

Q Application filed December 24, 1891. Serial No. 416,070. (No model.)

ton waste and sawdust and then passing it.

through water or some other liquid of greater specific gravity than the oil; and the object of the same is to produce an improved filter or apparatus for doing this work in a very rapid and economical manner.

To this end the invention consists inthe construction hereinafter more fully described and claimed, and as illustrated on the accompanying sheet of drawings, in which- Figure 1 is a perspective view of my refining apparatus complete. Fig. 2 is a plan View thereof, with the cover raised and the perforated top to the filter-box partially removed. Fig. 3 is a transverse vertical section.

Referring to the said drawings, 1 designates the body of this device, which is preferably cylindrical, as shown, having handles 2 and having a cover consisting of a stationary half 3 and a movable half 4., hinged at 5 to the stationary half and having a knob or handle 6.

7 is an oil-cock, 8 a water-cock, and 9am exhaust-cock, all communicating with the interior of the body and at proper heights, as

shown.

10 is ,the water-supply tube, which passes through the stationary portion of the cover, wherein it is secured, as at 11, extends nearly to the bottom of the body, where it is open, as at 12, and has its upper end 13 enlarged or funnel-shaped and preferably closed by a cap 14.

The top of this box,

of the cover and is removably inserted in the upper end of the oil-feed tube 20, while the upper end of the oil-supply tube is enlarged, as at 28, being of cylindrical shape and open at its upper end.

30 is a rod having a handle 31 at its upper end and an enlarged head 32 at itslower end,

and onthisrod are mounted several perforated disks 33, between which is located cotton or other waste 34:. In the upper end of theoil-feed tube 20 is preferably placed a wad 35 of cotton waste, above which may be located sawdust 36 or other good filtering material.

In operation the cooks are closed, water is poured in through the tube 10 to about the level shown in Fig. 3 and the caplet put on, and the 130x123 and enlarged upper end 28 of the oil-supplytube are provided with their proper filtering materials. Crude oil is then poured into the oil-supply tube onto the upper-most disk 33, through which it passes and percolates through the several'filtering materials, being assisted, if necessary, by the operator, who reciprocates the rod 30 by its handle, and the oil passes down the tube 20, up into and through the filter-box 23, out the per forated top plate 26' thereof, and rises through the water to the Water-level, on which it floats, as will be understood. The several filterings to which the oil is thus subjected will thoroughly remove therefrom the lighter particles and impurities, which would otherwise float ,on the water, and the latter removes from the oil the heavier particles, which of course antomatically separate from the oil globules or drops as they rise through the water, the particles-sinking to the bottom of the Water. The oil can be drawn off throughthe oil-cock 7 from time to time and the water through the water-cock 8, and when desired the entire delindrical body, a cover comprising a stationary and a hinged half, cocks in said body, a watersupply tube secured through said stationary half and leading nearly to the bottom of the body, its upper end being funnel-shaped, a cap for closing said end, a filter-box within the body below the Water-level, a tube leading from the bottom of the filter-box up through the cover of the body and having an enlarged cylindrical upper end, a rod having a handle at its upper end and an enlarged head at its lower end, perforated disks mounted on said rod and of a size to move Within said cylindrical upper end, and filtering material between said disks and within said upper end, substantially as described.

2. In an oil-filter, the combination, with the body and means for partially filling it with Water, of a filter-box within the body below the water-level, a tube leading from the bottom of the filter-box up through the cover of the body and having an enlarged cylindrical upper end, a rod having a handle at its upper end and an enlarged head at its lower end, perforated disks mounted on said rod and of a size to move Within said cylindrical upper end, and filtering material between said disks and Within said upper end, as and for the purpose hereiubefore set forth.

In testimony that I claim the foregoing as my own I have hereto afiixed my signature in the presence of two witnesses.

JAMES B. CRANE. lVitnesses:

W. A. MLToI-IELL, W. H. Pnnsons. 

